I originally thought that I may have a blow by issue because of some vapor out of the oil fill hole when opened, I use no oil and there is only an occasional drip on the breather hose no spots on axle or present in the vicinity. So I had my oil analyzed and everything was good except iron was 30 pm which really doesn't suprise me because I ran the truck harder than ever before and at higher rpm also silicon was 15 ppm which I think can be attributed to the fact that I had the valve cover off during this interval checking valve lash. My question is what things would tend to be out of range in an engine with excessive blowby, I am thinking hi soot levels. Also I checked my air intake and there was no dust present in the pipe. Truck has 49,000 miles and 9 thousand ago got the f1 camshaft and valve springs and valve job and o ring to the head, and also has ridiculous power. Jay
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